1 |
The everage temperatur eof the Earth surface is. |
Decreasing
Increasing
Fluctuating
No changing
|
2 |
The detph of Mariana Trench is. |
30612 feet
32601 feet
36201 feet
31062 feet
|
3 |
The average depth of Pacific ocean is. |
4280 metres
3900 metres
1200 metres
3200 metres
|
4 |
Shallow waters,low salinity and frozen surface are main features of. |
Indian ocean
Southern ocean
Arctic ocean
pacific ocean
|
5 |
Mid -oceanic ridge is the significant features of. |
Arctic ocean
Pacific ocean
Atlantic ocean
Indian ocean
|
6 |
Isthmus of Suez connects. |
Asia with africa
Asia with Europe
Africa with Europe
Ameria with Asia
|
7 |
The effect of Sun's gravitation is ............. of the Moon's gravity on the Earth. |
36%
46%
56%
66%
|
8 |
Phytoplankton is a microscopic |
Animal
Plants
a and b both
None of these
|
9 |
Daily tides occur twice with the interval of |
6 hours and 25 minutes
12 hours and 25 minutes
18 hours and 25 minutes
24 hours and25 minutes
|
10 |
The top fo the wave is called |
Breaker
Surf
Crest
Through
|